Sensitivity of an Active Head Using NiFe/Al2O3 Multilayered Films

H. Iwasaki, J. Akiyama

研究成果: Article

1 引用 (Scopus)

抜粋

The sensitivity of a magnetic readout head employing induced RF permeability changes in NiFe/Al2 O3 multilayered films (an active head) has been investigated by measuring the output voltage response to magnetic fields, taking the film thickness and width as parameters. All thick multilayered films had low coercivity and high permeability at frequencies of less than 50 MHz, though they exhibited a small decrease in induced RF permeability around 600 MHz, even when the film width was reduced to 10 µm. The sensitivity of all thick films rose by more than ten times compared with NiFe single-layered films, due to improvements in the soft magnetic properties and reduced eddy currents.

元の言語English
ページ(範囲)97-106
ページ数10
ジャーナルIEEE Translation Journal on Magnetics in Japan
4
発行部数2
DOI
出版物ステータスPublished - 1989 2

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Engineering(all)

フィンガープリント Sensitivity of an Active Head Using NiFe/Al2O3 Multilayered Films' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用